Transportation Studies

US 180 Corridor Master Plan

Study Overview

US 180 (aka Humphreys St or Fort Valley Rd) is the primary roadway corridor to the Arizona Snowbowl and experiences gridlock (bumper-to-bumper) traffic during winter weekends due to nearby snow play destinations. The purpose of the US 180 Corridor Master Plan is to identify a 20-year vision for the corridor by obtaining public and stakeholder input on alternative improvement strategies.

Public Meeting Notice

ADOT will host a public meeting regarding the US 180 Corridor Master Plan on Thursday, May 3, 2018, from 6 to 8:00 p.m. at the Flagstaff High School Commons located at 400 W. Elm Avenue, Flagstaff, AZ 86001. A brief presentation will start shortly after 6:00 p.m. followed by an open-house setting that will allow participants to speak directly with ADOT representatives. The public is encouraged to attend and provide comments.

If you are unable to attend the meeting but would like to comment, you can submit comments in the following ways:

By email:

In writing: US180 Corridor Master Plan, 206 S. 17th Avenue, MD310B, Phoenix, AZ 85007

Project Area Map

The US 180 Corridor Master Plan starts at the Humphreys St and Route 66 interchange and continues on to the Crowley Pit turn-out (milepost 233.25).


The US 180 Corridor Master Plan is being conducted concurrently with the ADOT Milton Rd Corridor Master Plan and in collaboration with the Northern Arizona Intergovernmental Public Transportation Authority’s (NAIPTA) on-going transit plans.

Contact Us

Please submit any questions or comments related to the US 180 Corridor Master Plan to

Dan Gabiou
Project Manager
Arizona Department of Transportation
206 S. 17th Avenue, MD310B
Phoenix, AZ 85007

If you would like to be notified via email when updates are issued, please subscribe for email updates.

The Arizona Ombudsman – Citizens Aide helps you resolve ongoing issues with State Agencies.

Civil Rights

Pursuant to Title VI of the Civil Rights Act of 1964, the Americans with Disabilities Act (ADA) and other nondiscrimination laws and authorities, ADOT does not discriminate on the basis of race, color, national origin, sex, age, or disability. Persons that require a reasonable accommodation based on language or disability should contact ADOT’s Civil Rights Office at Requests should be made as early as possible to ensure the State has an opportunity to address the accommodation.

De acuerdo con el Título VI de la Ley de Derechos Civiles de 1964, la Ley de Estadounidenses con Discapacidades (ADA por sus siglas en inglés) y otras normas y leyes antidiscriminatorias, el Departamento de Transporte de Arizona (ADOT) no discrimina por motivos de raza, color, origen nacional, sexo, edad o discapacidad. Las personas que requieran asistencia (dentro de lo razonable) ya sea por el idioma o discapacidad deben ponerse en contacto con la Oficina de Derechos Civiles de ADOT en Las solicitudes deben hacerse lo más antes posible para asegurar que el Estado tenga la oportunidad de hacer los arreglos necesarios.